Top Down Shooter Aim Variance

Question

For a topdown shooter I have the direction a bullet should go and the amount of variance there should be. Assuming I have everything I need, what is the math to adjust the direction of the bullet according to the variance?

Comments

You might want to be more specific regarding the form of the information you have.

• direction of bullet: I assume that's either a Vector2 or Vector3?
• amount of variance: Is that a distance at the impact point, an angle from the shoot point (in degrees or radians?), or something else?

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Sure. So I have a direction Vector2 made from the position of the player to the position of the mouse. I then have a variance that is randomly picked from a range. It would be best for it to be from the position of the player. It is neither degrees or radians as of yet.

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Maybe I'm not understanding something, but it seems like you could simply add the random variance to the position of the player, and then create a new Vector2 between the mouse and that new position, rather than your current Vector2 (which you say is between the mouse position and the player's position).